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best number for ph in soil ??

Lfc
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Am currently week 1 off flower was dialling in around 6.2 is this ok for soil or should o go to 6.5  .. cheers 

 

And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind. And god saw that it was good : genesis 1:12 🙌🏼

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Topic starter Posted : September 20, 2020 2:50 pm
TempleGrower
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@lfc

I usually shoot for that 6.5 mark, give or take a point. You should be fine with 6.2 but, I wouldn't go any lower. Running a few points higher will give you a bit of buffer space in case there are any weird pH swings for whatever reason tho, so might be a good idea.

This chart is from Jorge Cervantes' Cannabis Encyclopedia on page 340.

pH nute availability chart   Jorge Cervantes

 

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Posted : September 20, 2020 7:49 pm
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how are you meassuring your pH? pH Pen? if so, how old is it? do you keep it calibrated?

I have a BlueLab pH Pen for 3 years and I have to calibrate it every 2 weeks. BlueLab says once a month. And even then it deviates by 0,1 - 0,2 points.

So make sure you have a good instrument, otherwise you are just guessing.

"I don't dread any challenge that lies ahead, because I remember all the victories behind." - Steven Furtick

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Posted : September 20, 2020 7:57 pm
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@templegrower

Cheers I have been  running my ph in soil 5.8  (growth ) then 6 to 6,2  ( veg ) for I don’t no how long ,( allways had good results) read up about that being for hydro on PERCYS ,so I will changing up to 6,5  , Thanks mate for the advice , I will be putting pics up tomorow ,✌🏽 

And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind. And god saw that it was good : genesis 1:12 🙌🏼

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Topic starter Posted : September 20, 2020 8:19 pm
Lfc
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am using a ph pen mate it’s brand new it’s not the pen. I have been using the ph measurements of hydro instead off soil  ( 5.8 - 6.2 ) it should be 6.5  Mrk  as our friend temple grower explained , thanks mate for the help ✌🏽 

And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind. And god saw that it was good : genesis 1:12 🙌🏼

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Topic starter Posted : September 20, 2020 8:25 pm
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